Identify the vertex and axis of symmetry of the following quadratic function: f(x) = 3x^2 + 6x +15

vertex (options (3,15) (-1/2 6) (1,10) (-1,12)

Axis of symmetry (options (x=6) (x=1) (x=-1) ) (x=-1/2))

In trapezoid bath, ah=19.7 and et=16.1. identify be.

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)